This is one of Lennart Green's
favorite effects. You show the audience a special deck of cards. Every
card has a different back. You tell the spectators that each card was
stolen from a different poker game, a souvenir of a winning night.

You
take two of the cards and place them face-down on the table. The
spectator chooses two more cards. The first surprise is that the two
chosen cards match your predictions. The second surprise is that not
only do the faces match, so do the backs. The third surprise is a real
kicker. Every other card in the deck is identical except for the two
cards chosen by the spectator. The Stolen Cards comes with a special
deck and is completely self-working.